The　YBCO　films　with　BaSnO3　(BSO)　particles　were　prepared　on　LAO　(0　0　1)　substrates　by　metal　organic　deposition　using　trifluoroacetates　(TFA-MOD)　via　introducing　SnCl4　powders　into　the　YBCO　precursor　solution.　It　was　found　that　with　the　increase　of　the　SnCl4　contents,　the　slower　decomposition　and　higher　temperature　for　nucleation　during　the　reaction　were　requested　compared　to　that　of　pure　YBCO　film.　The　YBCO　films　with　different　contents　of　Sn　with　dense　surface　and　well　c-alignment　were　obtained　under　optimized　heat　treatment,　and　the　BaSnO3　phases　were　detected　by　XRD　analysis.　Litter　effect　of　BSO　particles　on　the　T-c　and　J(c)　values　of　YBCO　films　was　found.　All　YBCO　films　with　BSO　particles　had　T-c　values　over　90　K　and　J(c)　values　over　1　MA/cm(2).　A　significant　enhancement　of　J(c)　was　observed　for　YBCO　films　with　BSO　particles　compared　to　that　of　pure　YBCO　film　by　the　field　dependence　off,　values.　The　best　property　was　obtained　for　YBCO　film　with　6　mol.%　Sn　at　77　K　under　magnetic　field.　The　results　showed　that　the　J(c)　value　of　YBCO　film　with　6　mol.%　Sn　was　enhanced　by　a　factor　of　2　in　2　T,　and　over　a　factor　of　10　beyond　4T　compared　to　that　of　pure　YBCO　film.　(C)　2011　Elsevier　B.V.　All　rights　reserved.